Your professor asks you to take a personality test. After taking the test, you read your description of your personality type, and are disappointed that the results do not seem to capture your personality at all. In fact, you think the test probably measures attitudes rather than personality. What might be the problem with this test?
a) the test lacks operational definitions of what personality actually is
b) the test is not reliable
c) the test is not a valid measure of personality
d) the test has not been tested on a random sample